| 1 |
Plants with leaves subrosulate at base of synflorescence, herbaceous; lower part of stem when developed leafless; synflorescence terminal; leaves abaxially never white tomentose |
|
(2) |
| + |
Plants with leaves ± equally distributed on stems, herbaceous, scandent or suffrutescent; synflorescences terminal and axillary; leaves abaxially sometimes white tomentose |
|
(14) |
| |
|
|
|
| 2 (1) |
Leaves basally cordate to rounded, abruptly narrowed into winged or not winged petiole |
|
(3) |
| + |
Leaves basally cuneate, gradually attenuate into winged or not winged petioles |
|
(6) |
| |
|
|
|
| 3 (2) |
Ray florets 2-5, conspicuous; phyllaries 7 or 8 |
|
(4) |
| + |
Ray florets absent to 2, minute; phyllaries 4 or 5 |
|
(5) |
| |
|
|
|
| 4 (3) |
Ray florets 2, lamina ca. 2.5 mm; petioles broadly to narrowly winged. |
|
14 S. ainsliaeifolia |
| + |
Ray florets 4 or 5, lamina ca. 4 mm; petioles not winged. |
|
11 S. pseudoalata |
| |
|
|
|
| 5 (3) |
Petiole not winged; phyllaries ± glabrous. |
|
12 S. wallichii |
| + |
Petiole winged, rarely not; phyllaries setose. |
|
13 S. alata |
| |
|
|
|
| 6 (2) |
Capitula discoid |
|
(7) |
| + |
Capitula radiate |
|
(9) |
| |
|
|
|
| 7 (6) |
Involucres 3-4 mm; phyllaries 10-12; pappus scant, 2-3 mm. |
|
8 S. brevipappa |
| + |
Involucres 6-7 mm; phyllaries 5; pappus abundant, 6-8 mm |
|
(8) |
| |
|
|
|
| 8 (7) |
Petioles narrowly winged to base; pappus pure white; calycular bracts to 6 mm. |
|
9 S. sciatrephes |
| + |
Petioles not winged to base; pappus off-white, sordid; calycular bracts not more than 3 mm. |
|
10 S. nayongensis |
| |
|
|
|
| 9 (6) |
Involucres 5-7 × 2-4 mm |
|
(10) |
| + |
Involucres 10-11 × 5-6 mm |
|
(11) |
| |
|
|
|
| 10 (9) |
Phyllaries 10-12; involucres 5-7 × 3-6 mm; ray lamina 9-10 mm. |
|
1 S. cavaleriei |
| + |
Phyllaries 8; involucres ca. 5 × 2-3 mm; ray lamina ca. 5 mm. |
|
2 S. duclouxii |
| |
|
|
|
| 11 (9) |
Ray lamina 6-11 mm; calycular bracts 4-6 mm |
|
(12) |
| + |
Ray lamina 3.5-5 mm; calycular bracts to 3 mm |
|
(13) |
| |
|
|
|
| 12 (11) |
Phyllaries 13-15; leaves abaxially finely sparsely arachnoid-tomentose and glabrescent. |
|
4 S. fulvipes |
| + |
Phyllaries ca. 10; leaves abaxially very sparsely setulose or glabrous. |
|
6 S. austroyunnanensis |
| |
|
|
|
| 13 (11) |
Stems sparsely arachnoid-tomentose; leaves narrowly elliptic, apically caudate- acuminate, abaxially adpressed pilose; calycular bracts 10; phyllaries 12, basally sparsely arachnoid. |
|
7 S. damiaoshanica |
| + |
Stems densely fulvous tomentose; leaves obovate-spatulate or obovate-elliptic, apically obtuse or shortly acute, abaxially gray-white tomentose; calycular bracts 7 or 8; phyllaries 9-11, glabrous. |
|
5 S. changiana |
| |
|
|
|
| 14 (1) |
Stems weak, flexuous; plants scandent or subscandent; capitula heterogamous |
|
(15) |
| + |
Stems ± erect; plants not scandent, ± erect; capitula heterogamous or homogamous |
|
(16) |
| |
|
|
|
| 15 (14) |
Involucres 4-5.5 × 1-1.5 mm; leaves ovate, basally cordate or cuneate. |
|
15 S. tetrantha |
| + |
Involucres 8-12 × 2-3 mm; leaves rounded at base. |
|
16 S. yui |
| |
|
|
|
| 16 (14) |
Capitula few, in terminal or axillary groups of 1-5; involucres 8-11 × 2.2-7 mm; leaves abaxially sparsely setose or thinly arachnoid, never densely white tomentose |
|
(17) |
| + |
Capitula numerous, in flat-topped terminal corymbs, rounded axillary terminal corymbs, or large terminal thyrses; involucres to 7 mm, if larger then leaves abaxially densely white tomentose |
|
(20) |
| |
|
|
|
| 17 (16) |
Calycular bracts conspicuous, to 6 mm; leaves membranous. |
|
20 S. chingiana |
| + |
Calycular bracts inconspicuous, to 3 mm; leaves papery |
|
(18) |
| |
|
|
|
| 18 (17) |
Capitula discoid. |
|
19 S. sinica |
| + |
Capitula radiate |
|
(19) |
| |
|
|
|
| 19 (18) |
Ray florets 7, lamina 9-10 mm; leaves elliptic or oblanceolate-elliptic. |
|
17 S. hieraciifolia |
| + |
Ray florets 5, lamina ca. 3 mm; leaves oblanceolate-oblong. |
|
18 S. guizhouensis |
| |
|
|
|
| 20 (16) |
Synflorescences ± flat-topped terminal corymbs |
|
(21) |
| + |
Synflorescences ± rounded axillary and terminal corymbs, or terminal pyramidal thyrses |
|
(27) |
| |
|
|
|
| 21 (20) |
Leaves shortly petiolate, abaxially glabrous; pappus straw-colored |
|
(22) |
| + |
Leaves sessile, abaxially tomentose, or if glabrous then pappus white |
|
(23) |
| |
|
|
|
| 22 (21) |
Phyllaries 3 or 4, ca. 7 mm; ray floret 1, minutely radiate. |
|
37 S. acuminata |
| + |
Phyllaries 5, ca. 5 mm; ray florets 2 or 3, conspicuously radiate. |
|
38 S. calocephala |
| |
|
|
|
| 23 (21) |
Capitula radiate |
|
(24) |
| + |
Capitula discoid |
|
(25) |
| |
|
|
|
| 24 (23) |
Leaves abaxially thinly arachnoid-tomentose; pappus straw-colored; achenes glabrous; ray lamina 5-7 mm. |
|
41 S. birmanica |
| + |
Leaves abaxially glabrous; pappus white; achenes hairy; ray lamina 8-10 mm. |
|
43 S. atractylidifolia |
| |
|
|
|
| 25 (23) |
Stem leaves 2 or 3, long petiolate, blade reniform or cordate-reniform, margin undulate-dentate; capitula solitary, racemose; phyllaries and florets 5. |
|
39 S. reniformis |
| + |
Stem leaves numerous, sessile or subsessile, blade narrowly oblong-elliptic to lanceolate; capitula numerous, arranged in dense corymbs; phyllaries 8; florets 8-11 |
|
(26) |
| |
|
|
|
| 26 (25) |
Leaves abaxially thinly arachnoid-tomentose. |
|
40 S. lucorum |
| + |
Leaves abaxially densely white tomentose. |
|
42 S. setchuenensis |
| |
|
|
|
| 27 (20) |
Capitula arranged in terminal thyrses; florets 1-4(or 5), all bisexual |
|
(28) |
| + |
Capitula arranged in axillary and terminal corymbs; florets 5-35, with at least 1 marginal filiform or radiate female floret present |
|
(34) |
| |
|
|
|
| 28 (27) |
Leaves divided |
|
(29) |
| + |
Leaves undivided |
|
(31) |
| |
|
|
|
| 29 (28) |
Leaves deeply pinnatipartite; lateral lobes (2 or)3 or 4 pairs, narrowly lanceolate or oblong-lanceolate. |
|
32 S. vaniotii |
| + |
Leaves 3-5-lobed or deeply palmatipartite, lobes ovate-triangular or oblong-lanceolate |
|
(30) |
| |
|
|
|
| 30 (29) |
Leaves shallowly 3-5-lobed; involucres 6-7 mm; phyllaries and florets 5; achenes hairy. |
|
30 S. muliensis |
| + |
Leaves deeply 5-palmatipartite; phyllaries and florets 3; achenes glabrous. |
|
31 S. palmatisecta |
| |
|
|
|
| 31 (28) |
Petiole expanded into an amplexicaul auricle, leaf blade triangular-ovate or triangular-hastate, both surfaces brown pubescent; phyllaries and florets 5; pappus purplish brown. |
|
26 S. otophylla |
| + |
Petiole not expanded, without an auricle, leaf blade ovate-lanceolate or oblong-lanceolate, rarely cordate, abaxially pubescent to subglabrous; phyllaries and florets 2 or 3(or 4) |
|
(32) |
| |
|
|
|
| 32 (31) |
Leaves cordate or ovate-cordate, subleathery, palmately veined, abaxially veins fulvous setulose; phyllaries and florets 3; pappus reddish. |
|
28 S. cordifolia |
| + |
Leaves not cordate, papery or thinly papery, pinnately veined, abaxially veins shortly pubescent or subglabrous; phyllaries and florets 2-4; pappus pale reddish brown or sordid |
|
(33) |
| |
|
|
|
| 33 (32) |
Synflorescences broad, lax pyramidal thyrses; phyllaries and florets 2 or 3; achenes glabrous or hairy; pappus pale reddish brown or straw-colored. |
|
29 S. erythropappa |
| + |
Synflorescences narrow, dense pyramidal thyrses; phyllaries 4 or 5, florets 3; achenes hairy; pappus white. |
|
27 S. solidaginea |
| |
|
|
|
| 34 (27) |
Leaves abaxially white tomentose |
|
(35) |
| + |
Leaves abaxially not white tomentose |
|
(39) |
| |
|
|
|
| 35 (34) |
Involucres 1.5-2 mm wide; florets 11-15 |
|
(36) |
| + |
Involucres 2-4 mm wide; florets 19-35 |
|
(37) |
| |
|
|
|
| 36 (35) |
Lateral main veins of leaves with pale yellow-brown hairs. |
|
21 S. xantholeuca |
| + |
Lateral main veins of leaves with conspicuous dark brown hairs. |
|
22 S. yakoensis |
| |
|
|
|
| 37 (35) |
Capitula disciform or minutely radiate. |
|
25 S. nagensium |
| + |
Capitula conspicuously radiate |
|
(38) |
| |
|
|
|
| 38 (37) |
Synflorescences and phyllaries white arachnoid-tomentose, at most with some brown hairs intermixed; ray florets ca. 8. |
|
23 S. cappa |
| + |
Synflorescences and phyllaries conspicuously ferruginous tomentose; ray florets 14-20. |
|
24 S. ionodasys |
| |
|
|
|
| 39 (34) |
Capitula conspicuously radiate, ray florets 8 |
|
(40) |
| + |
Capitula minutely radiate, ray florets 2-5 |
|
(41) |
| |
|
|
|
| 40 (39) |
Leaves pubescent or thinly tomentose; ray lamina ca. 3.5 mm. |
|
23 S. cappa |
| + |
Leaves glabrous; ray lamina ca. 6 mm. |
|
3 S. longipes |
| |
|
|
|
| 41 (39) |
Corymbs dense, glomeruliform, 2-4 cm. |
|
33 S. glomerata |
| + |
Corymbs more lax, spreading, 4.5-10 cm |
|
(42) |
| |
|
|
|
| 42 (41) |
Capitula ca. 4 × 2.7 mm; phyllaries 8. |
|
36 S. saluenensis |
| + |
Capitula 3.5-4 × ca. 1.5 mm; phyllaries 4 or 5 |
|
(43) |
| |
|
|
|
| 43 (42) |
Leaves ovate or elliptic, basally not auriculate; ray florets 3 or 4. |
|
34 S. triligulata |
| + |
Leaves narrowly elliptic or narrowly oblong-elliptic, basally auriculate; ray florets 2. |
|
35 S. auriculata |
